We live out in the country and within the first six months of owning our Sundance Optima cover, squirrels made holes to try and bury acorns; crows pecked holes in it. so it leaks, and has become too heavy to open and chemicals in water are compromised. So, to get water back in shape, we first need to replace cover. Does anyone have cover they think would not be able to be pecked through? Once we get new cover we will also get a weather cap to cover with, but that could be pecked through also. Anyone else faced this problem? Thank you.